05-22-2008
I believe shell script should be faster. With C/C++, there is a lot of copying of data to/from kernel, which makes C/C++ programs slow. To make C/C++ programs faster, you may use multithreading also.
- Dheeraj
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1. Shell Programming and Scripting
Hi All,
I have written a script which does some editing in the files, based on user input.This might not be the most elegant way of doing it and there would be many improvements needed.
Please go through it and let me know how it could be improved.
Suggestions are welcome!!
Thanks!... (2 Replies)
Discussion started by: nua7
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2. Shell Programming and Scripting
Hi!
Thank you for the help yesterday
This is the finished product
There is one more thing I would like to do to it but I’m not to certain
On how to proceed I would like to log all output to a log in order to
Be able to roll back
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Discussion started by: Ex-Capsa
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3. Infrastructure Monitoring
Hello,
I am pretty new to shell scripts and I recently wrote one that seems to do what it should but I am exploring the possibility of improving its performance and would appreciate some help. Here is what it does - Its meant to monitor a bunch of systems (reads in IPs one at a time from a flat... (9 Replies)
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5. Shell Programming and Scripting
Hi All,
Here is my script
#! /bin/sh
var1=some email id
var2=some email id
grep -i "FAILED FILE FORMAT VALIDATION" /opt >tmp2
diff tmp1 tmp2 | grep ">" >tmp3
if
then
cat tmp3 | mailx -s " Error Monitoring" $var2
else
echo "Pattern NOt Found" | mailx -s " Error Monitoring" $var1... (1 Reply)
Discussion started by: Gopalak
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Hi This is my Following code:
#!/bin/sh
echo "TOTAL_NO_OF_MAILS"
read TOTAL_NO_OF_MAILS
echo "TOTAL_NO_OF_TICKETS "
read TOTAL_NO_OF_TICKETS
echo "TICKETS_IN_QUEUE"
read TICKETS_IN_QUEUE
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7. Shell Programming and Scripting
Below script is used to search numeric data from around 400 files in a folder. I have 300 such folders. Need help in performance improvement in the script.
Below Script searches 20 such folders ( 300 files in each folder) simultaneously. This increases cpu utilization upto 90% What changes... (3 Replies)
Discussion started by: vegasluxor
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SU(1) FSF SU(1)
NAME
su - run a shell with substitute user and group IDs
SYNOPSIS
su [OPTION]... [-] [USER [ARG]...]
DESCRIPTION
Change the effective user id and group id to that of USER.
-, -l, --login
make the shell a login shell
-c, --commmand=COMMAND
pass a single COMMAND to the shell with -c
-f, --fast
pass -f to the shell (for csh or tcsh)
-m, --preserve-environment
do not reset environment variables
-p same as -m
-s, --shell=SHELL
run SHELL if /etc/shells allows it
--help display this help and exit
--version
output version information and exit
A mere - implies -l. If USER not given, assume root.
AUTHOR
Written by David MacKenzie.
REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>.
COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO
The full documentation for su is maintained as a Texinfo manual. If the info and su programs are properly installed at your site, the com-
mand
info su
should give you access to the complete manual.
su (coreutils) 4.5.3 February 2003 SU(1)